Answer: Option (A) is the correct answer.
Explanation:
When there occurs no change in the chemical composition of a substance then it is known as physical property.
For example, mass, volume, density are all physical properties.
Since, the mass of an electron is negligible and an electron holds a negative charge.
Therefore, negatively charged particle with very little mass accurately describes the physical properties of electrons in atoms.
There are 8 oxygens if you multiply the 4 by the 2
Lemme look at the periodic table give me 1 minute
The correct answer is option ( D ) Ag2Co3
it cannot be decomposed by heat
Hope it helps you
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